142553001320 has 128 divisors (see below), whose sum is σ = 330235194240. Its totient is φ = 55363461120.

The previous prime is 142553001319. The next prime is 142553001329. The reversal of 142553001320 is 23100355241.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 142553001320.

It is not an unprimeable number, because it can be changed into a prime (142553001329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80220272 + ... + 80222048.

It is an arithmetic number, because the mean of its divisors is an integer number (2579962455).

Almost surely, 2^142553001320 is an apocalyptic number.

142553001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142553001320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165117597120).

142553001320 is an abundant number, since it is smaller than the sum of its proper divisors (187682192920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142553001320 is a wasteful number, since it uses less digits than its factorization.

142553001320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2275 (or 2271 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 142553001320 its reverse (23100355241), we get a palindrome (165653356561).

The spelling of 142553001320 in words is "one hundred forty-two billion, five hundred fifty-three million, one thousand, three hundred twenty".